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Power switch wiring

Needto to know what pins do the power switch wirs go on emachine t2798

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Locate your battery on the motherboard. It should be near the edge closest to the front of your machine. Look along that edge for a two or three contact header (connector with stiff gold plated wires sticking straight up). Near the header you will see in very small white writing "PWR SW". That's it. If it isn't on that edge, continue looking along the edge closest to the bottom of your machine. It i along that edge on some boards.

Posted on Aug 01, 2008

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How to hook up the face plate of a emachine w3400 Wich includes 3 wires 1 power butten and 2 led lights


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JFP1 is on the Bottom Right corner. There are two columns of pins arranged vertically.
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The Right side column is numbered Even.
Starting at the Top and going Down, the pins are numbered:
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If the LED light is dim will operating switch the wires around

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> IF Used

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E) Pins 6 and 8 are for the Power On switch. (Power On button)

Trace the wires back to the Power On switch. Even if it means temporarily removing part of the Front Panel to see.

Same with the LED lights.
See which wires go to the Power On LED, and HDD Activity LED. (Harddrive Activity LED)

Follow the 3 wires, and tell me where they go to on the Front Panel.
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Can u possibly tell me where i might be able to download a schematic for an EMachine desktop computer model #T2742? It is out of warranty and was donated to our church and we need to know where to...


Hi dallasblue08,

Here's a diagram of what your looking for:

The following eMachine models share the same motherboard (and thus the same front panel layout):
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284ecac.png

Hope this helps!

Mark

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1 Answer

Emachine t2742 I also have a wiring problem!


gtater,
It's ironic that you ask me this question today-- i am just now carrying in another eMachine computer to fix. Anyway, unfortunately I do not have one that is the same model as yours (T2742). However, I did some quick research and found that yours has the same exact motherboard as the T2898 which I made the diagram for!

The following eMachine models share the same motherboard (and thus the same front panel layout):
T2742 T2796 T2798 T2824 T2885 D2823 T2862 T2896 T2898 T2958

284ecac.png

For further reference, I would like to share this diagram for the eMachines T6544 in case someone else may need this model. This is the computer I just carried in... might as well share.
ccd6456.png
By the way, the power switch doesn't need to be oriented any particular way (positive and negative), which is why the switches are not labeled as + or -. Switches can be wired either way and they will work the same.

Hope this helps.

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if you believe it to be the switch unplug the connector and jump the connection on the motherboard using the reset switch or a jumper, or not recommended but have done this myself many times using a flat blade screw driver very carefully and touch the 2 pins to complete the circuit.
if it doesnt power on then its more than likely it is the power supply but the motherboard being faulty could also cause this to happen.
the problem i have found with emachines is that its difficult to get replacement power supplys

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